Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0f1de4936382940…

MALICIOUS

PDF

38.6 KB Created: 2021-05-19 07:31:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4ebc7c921aeb03493623276ea2b1c2c7 SHA-1: 04be35b771b670a750090d4eee8f375ca698352a SHA-256: a0f1de4936382940b4ff494e673c3fde2957b746fc2310b8c8137bf16a8e3503
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to a known malicious redirector infrastructure, disguised as a 'free generator / game hack'. The document body also contains text related to 'Www Roblox Com Robux Free' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', further reinforcing the lure. The primary function appears to be redirecting users to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/www-roblox-com-robux-free-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003512.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3512 28920 bytes
SHA-256: 9c0a8805a6a606f3a3080a63fd14aaf910485e11ceb477765cbc2b94fba93e77
font_01_sfnt_off00007481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7481 18708 bytes
SHA-256: c91f27fd30ec200e2a0dbd5cc88ad35776bc2371b1b59549651737de5f7a4295

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